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. Author manuscript; available in PMC: 2018 Nov 1.
Published in final edited form as: Radiat Res. 2017 Aug 16;188(5):579–590. doi: 10.1667/RR14831.1

FIG. 1.

FIG. 1

Time course for the development of very low-dose radiation-induced adaptive response in six human tumor cell lines differing in TP53 mutational status. P values were determined by comparing the survival of cells after two 2 Gy doses with those exposed to two 2 Gy doses along with the 5 mGy doses. Exposure to 5 mGy induced a significant elevation in survival in TP53 WT cells: (panel A) MCF7, (panel C) A549 and (panel E) Hs766T, and a significant reduction in survival in TP53 Mut cells: (panel B) MDA-MB-231, (panel D) NCI-H1975 and (panel F) Panc-1. Each experiment was repeated three times and error bars represent the standard error of the mean (SEM).